What Is a Hexagonal Anchor?

What is a hexagonal anchor? That is to know astronomy from above, geography from below, music, chess, calligraphy and painting, playing and singing, game competitions, racing and fishing, traditional Chinese studies and martial arts, scientific research and military affairs... As long as you can't think of it, there is no anchor who can't do it! What? Is the anchor so powerful? How about some drama? Uh-huh, I don't have much singing, so I'll just do a random part! As soon as the anchor opened his mouth, everyone was shocked... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.